High-performance capacitive touchscreens to replace resistive solution for single-layer touchscreen sensors
May 16, 2011 // Paul Buckley
Cypress Semiconductor Corp., has unveiled a new feature for its TrueTouch touchscreen controllers that enables manufacturers of handsets, cameras, GPS systems and other mobile systems to offer the benefits of capacitive touchscreens at resistive touchscreen costs.
The new feature available for Cypress's CY8CTST241 (single-touch with one-finger gestures) and CY8CTST242 (adds limited two-finger gestures such as “pinch” and “zoom”) delivers high performance touchscreen accuracy and responsiveness with a true single-layer sensor panel, reducing the cost of the most expensive component of the touchscreen.
Increasingly, capacitive touchscreens are viewed as a differentiator by buyers of new mobile devices. Capacitive advantages over resistive touchscreens include a more intuitive user experience, better transmissivity, lower power, increased reliability and better durability. Many lower-priced “feature phones” do not offer capacitive touchscreens today because of the cost. The new TrueTouch single-layer sensor opens up new “feature phones” and lower-cost smartphones to capacitive touchscreens, especially in major markets such as China and India.
Traditional capacitive touchscreens use a two-layer sensor to deliver the accuracy and linearity required for today's user experience. Cypress has developed proprietary algorithms that interface with a true single-layer sensor with no bridges to deliver two-layer performance for an unparalleled combination of user experience and cost sensitivity. The removal of this second sensor layer can save mobile device manufacturers 30 percent or more on sensor costs, and is available today for glass and film. Even with only one sensor layer, the TrueTouch solution claims to deliver accuracy better than 1.25 mm, excellent signal-to-noise ratios, fast response times (80 Hz), and best-in-class active power of 3.6 mW.
The CY8CTST241 and CY8CTST242 are available today for lead customers.
More information about the TrueTouch solution is available at
Tiny spectrometer targets IoT
December 17, 2014
Startup company NanoLambda has developed a $10 spectrometer-on-a-chip that's suitable for use on a wide range of consumer ...
Feeding scrap plastic into your designs
LG adds quantum dot technology to 4K ULTRA HD TVs
Graphene wrapper boosts lithium-sulfur battery performance
Set top boxes get smarter than TVs
Evaluating Zero-Drift Amplifier Performance
December 17, 2014
Analog applications are demanding better precision and drift performance due to improvements in data converter resolution ...
From bionic contact lenses to Li-Fi communications
Europe's largest battery-storage project goes operational in the UK
Tiny, boring engineering designs can be fun
- New life for Embedded systems in the Internet of Things
- Virtualization and the Internet of Things
- RF/Microwave Instrumentation “S” Series Amplifiers
- Application Guide to RF Coaxial Connectors and Cables
InterviewCEO interview: Bosch's IoT startup is all about the system
Thorsten Mueller, CEO of Bosch Connected Devices and Solutions GmbH (Reutlingen, Germany), has been guiding the latest startup subsidiary of Robert Bosch GmbH since 2013 when he started the initiative ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Arrow Electronics is giving away ten BeMicro Max 10 FPGA evaluation boards together with an integrated USB-Blaster, each package being worth 90 Euros, for EETimes Europe's readers to win.
Designed to get you started with using an FPGA, the BeMicro Max 10 adopts Altera's non-volatile MAX 10 FPGA built on 55-nm flash process.
The MAX 10 FPGAs are claimed to revolutionize...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.